TITLE: GCN CIRCULAR NUMBER: 29211 SUBJECT: Fermi trigger No 631104264: Global MASTER-Net observations report DATE: 20/12/31 20:30:25 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB201231.45 (trigger No 631104264,05h 29m 21.60s , +31d 19m 48.0s, R=9.48) errorbox 25119 sec after notice time and 25171 sec after trigger time at 2020-12-31 17:43:51 UT, with upper limit up to 17.4 mag. The observations began at zenith distance = 35 deg. The sun altitude is -36.7 deg. The galactic latitude b = -1 deg., longitude l = 176 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1516031 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 25202 | 2020-12-31 17:43:51 | MASTER-Tavrida | (05h 25m 33.61s , +30d 12m 32.2s) | C | 60 | 16.1 | 25388 | 2020-12-31 17:46:57 | MASTER-Tavrida | (04h 48m 32.98s , +30d 09m 17.2s) | C | 60 | 13.1 | 25388 | 2020-12-31 17:46:57 | MASTER-Tavrida | (04h 55m 28.59s , +30d 06m 23.7s) | C | 60 | 14.1 | 25468 | 2020-12-31 17:48:17 | MASTER-Tavrida | (05h 08m 42.68s , +24d 09m 58.8s) | C | 60 | 13.3 | 25468 | 2020-12-31 17:48:17 | MASTER-Tavrida | (05h 15m 15.85s , +24d 07m 16.1s) | C | 60 | 14.1 | 25948 | 2020-12-31 17:56:17 | MASTER-Tavrida | (05h 26m 13.81s , +24d 10m 31.2s) | C | 60 | 15.6 | 25948 | 2020-12-31 17:56:17 | MASTER-Tavrida | (05h 32m 47.36s , +24d 07m 53.1s) | C | 60 | 15.5 | 26441 | 2020-12-31 18:04:30 | MASTER-Tavrida | (05h 28m 39.08s , +36d 10m 24.9s) | C | 60 | 16.2 | 26441 | 2020-12-31 18:04:30 | MASTER-Tavrida | (05h 36m 04.81s , +36d 07m 35.4s) | C | 60 | 16.4 | 26520 | 2020-12-31 18:05:49 | MASTER-Tavrida | (05h 13m 37.22s , +32d 10m 06.0s) | C | 60 | 16.8 | 26520 | 2020-12-31 18:05:49 | MASTER-Tavrida | (05h 20m 42.16s , +32d 07m 17.3s) | C | 60 | 17.0 | 26600 | 2020-12-31 18:07:09 | MASTER-Tavrida | (05h 07m 03.66s , +30d 11m 26.6s) | C | 60 | 16.3 | 26600 | 2020-12-31 18:07:09 | MASTER-Tavrida | (05h 13m 59.80s , +30d 08m 37.3s) | C | 60 | 16.2 | 26948 | 2020-12-31 18:12:57 | MASTER-Tavrida | (05h 20m 41.10s , +34d 11m 57.7s) | C | 60 | 16.9 | 26948 | 2020-12-31 18:12:57 | MASTER-Tavrida | (05h 27m 53.79s , +34d 09m 21.5s) | C | 60 | 16.7 | 27027 | 2020-12-31 18:14:17 | MASTER-Tavrida | (05h 01m 12.77s , +28d 10m 17.6s) | C | 60 | 16.5 | 27027 | 2020-12-31 18:14:17 | MASTER-Tavrida | (05h 07m 58.63s , +28d 07m 38.0s) | C | 60 | 16.3 | 27251 | 2020-12-31 18:18:00 | MASTER-Tavrida | (05h 01m 20.78s , +34d 11m 11.0s) | C | 60 | 15.7 | 27251 | 2020-12-31 18:18:00 | MASTER-Tavrida | (05h 08m 33.29s , +34d 08m 35.4s) | C | 60 | 15.8 | 28008 | 2020-12-31 18:30:37 | MASTER-Tavrida | (05h 25m 31.28s , +30d 10m 36.8s) | C | 60 | 16.4 | 28008 | 2020-12-31 18:30:37 | MASTER-Tavrida | (05h 32m 27.67s , +30d 07m 51.4s) | C | 60 | 16.7 | 28186 | 2020-12-31 18:33:36 | MASTER-Tavrida | (05h 00m 14.87s , +29d 58m 24.1s) | C | 60 | 16.0 | 28186 | 2020-12-31 18:33:36 | MASTER-Tavrida | (04h 53m 16.41s , +30d 01m 42.0s) | C | 60 | 15.5 | 28266 | 2020-12-31 18:34:55 | MASTER-Tavrida | (05h 19m 32.75s , +24d 01m 01.1s) | C | 60 | 14.6 | 28266 | 2020-12-31 18:34:55 | MASTER-Tavrida | (05h 12m 57.28s , +24d 04m 22.1s) | C | 60 | 15.4 | 28596 | 2020-12-31 18:40:25 | MASTER-Tavrida | (05h 37m 03.18s , +23d 59m 54.6s) | C | 60 | 14.1 | 28675 | 2020-12-31 18:41:45 | MASTER-Tavrida | (04h 54m 36.57s , +27d 58m 58.3s) | C | 60 | 14.7 | 28675 | 2020-12-31 18:41:45 | MASTER-Tavrida | (04h 47m 47.21s , +28d 02m 20.9s) | C | 60 | 13.9 | 28755 | 2020-12-31 18:43:04 | MASTER-Tavrida | (05h 30m 03.84s , +37d 58m 48.2s) | C | 60 | 13.5 | 29175 | 2020-12-31 18:50:04 | MASTER-Tavrida | (05h 25m 37.19s , +31d 58m 10.6s) | C | 60 | 13.8 | 29254 | 2020-12-31 18:51:23 | MASTER-Tavrida | (05h 18m 47.80s , +29d 59m 34.3s) | C | 60 | 12.8 | 29333 | 2020-12-31 18:52:43 | MASTER-Tavrida | (05h 30m 45.86s , +27d 58m 53.8s) | C | 60 | 14.7 | 29333 | 2020-12-31 18:52:43 | MASTER-Tavrida | (05h 23m 57.07s , +28d 02m 12.5s) | C | 60 | 14.4 | 29413 | 2020-12-31 18:54:02 | MASTER-Tavrida | (05h 33m 06.99s , +33d 59m 43.1s) | C | 60 | 12.4 | 29492 | 2020-12-31 18:55:22 | MASTER-Tavrida | (05h 12m 37.98s , +27d 58m 49.1s) | C | 60 | 14.5 | 29492 | 2020-12-31 18:55:22 | MASTER-Tavrida | (05h 05m 49.55s , +28d 02m 07.6s) | C | 60 | 13.7 | 29651 | 2020-12-31 18:58:01 | MASTER-Tavrida | (05h 13m 49.37s , +33d 58m 26.4s) | C | 60 | 12.3 | 29731 | 2020-12-31 18:59:20 | MASTER-Tavrida | (05h 37m 11.50s , +30d 00m 40.7s) | C | 60 | 12.8 | 29947 | 2020-12-31 19:02:56 | MASTER-Tavrida | (05h 00m 18.84s , +29d 57m 05.0s) | C | 60 | 12.5 | 30026 | 2020-12-31 19:04:16 | MASTER-Tavrida | (05h 19m 45.70s , +23d 58m 32.2s) | C | 60 | 13.3 | 30026 | 2020-12-31 19:04:16 | MASTER-Tavrida | (05h 13m 12.84s , +24d 01m 45.2s) | C | 60 | 14.8 | 30106 | 2020-12-31 19:05:35 | MASTER-Tavrida | (05h 37m 07.55s , +24d 01m 20.5s) | C | 60 | 15.8 | 30106 | 2020-12-31 19:05:35 | MASTER-Tavrida | (05h 30m 34.48s , +24d 04m 34.2s) | C | 60 | 15.9 | 30185 | 2020-12-31 19:06:54 | MASTER-Tavrida | (04h 54m 38.36s , +27d 57m 46.5s) | C | 60 | 14.4 | 30185 | 2020-12-31 19:06:54 | MASTER-Tavrida | (04h 47m 52.01s , +28d 00m 58.3s) | C | 60 | 15.7 | 30265 | 2020-12-31 19:08:14 | MASTER-Tavrida | (05h 30m 04.40s , +37d 57m 50.6s) | C | 60 | 13.6 | 30344 | 2020-12-31 19:09:33 | MASTER-Tavrida | (05h 41m 18.76s , +35d 59m 52.8s) | C | 60 | 12.6 | 30503 | 2020-12-31 19:12:13 | MASTER-Tavrida | (05h 18m 52.87s , +29d 59m 19.3s) | C | 60 | 12.7 | 30583 | 2020-12-31 19:13:32 | MASTER-Tavrida | (05h 30m 46.11s , +27d 59m 25.5s) | C | 60 | 15.2 | 30583 | 2020-12-31 19:13:32 | MASTER-Tavrida | (05h 24m 00.02s , +28d 02m 37.3s) | C | 60 | 15.1 | 30662 | 2020-12-31 19:14:51 | MASTER-Tavrida | (05h 33m 00.81s , +34d 00m 06.3s) | C | 60 | 13.5 | 30742 | 2020-12-31 19:16:11 | MASTER-Tavrida | (05h 12m 46.15s , +27d 58m 29.7s) | C | 60 | 16.1 | 30742 | 2020-12-31 19:16:11 | MASTER-Tavrida | (05h 06m 00.15s , +28d 01m 41.7s) | C | 60 | 16.2 | 31127 | 2020-12-31 19:22:37 | MASTER-Tavrida | (05h 06m 39.71s , +31d 57m 00.2s) | C | 60 | 14.6 | 31207 | 2020-12-31 19:23:56 | MASTER-Tavrida | (05h 13m 47.00s , +33d 57m 18.6s) | C | 60 | 13.8 | 31207 | 2020-12-31 19:23:56 | MASTER-Tavrida | (05h 06m 34.64s , +34d 00m 27.6s) | C | 60 | 15.0 | 31546 | 2020-12-31 19:29:35 | MASTER-Tavrida | (05h 07m 10.73s , +25d 59m 02.7s) | C | 60 | 15.9 | 31546 | 2020-12-31 19:29:35 | MASTER-Tavrida | (05h 00m 31.92s , +26d 02m 13.7s) | C | 60 | 16.1 | 31626 | 2020-12-31 19:30:55 | MASTER-Tavrida | (05h 21m 34.46s , +35d 58m 25.2s) | C | 60 | 12.9 | 31935 | 2020-12-31 19:36:04 | MASTER-Tavrida | (05h 32m 21.48s , +21d 59m 25.8s) | C | 60 | 12.0 | 33075 | 2020-12-31 19:55:04 | MASTER-Tavrida | (05h 13m 31.30s , +26d 10m 18.6s) | C | 60 | 16.4 | 33075 | 2020-12-31 19:55:04 | MASTER-Tavrida | (05h 20m 09.11s , +26d 08m 00.2s) | C | 60 | 16.3 | 33155 | 2020-12-31 19:56:24 | MASTER-Tavrida | (04h 55m 48.40s , +26d 08m 17.2s) | C | 60 | 17.4 | 33155 | 2020-12-31 19:56:24 | MASTER-Tavrida | (05h 02m 26.16s , +26d 06m 00.5s) | C | 60 | 17.2 | 33234 | 2020-12-31 19:57:43 | MASTER-Tavrida | (05h 08m 42.14s , +36d 07m 52.4s) | C | 60 | 16.7 | 33234 | 2020-12-31 19:57:43 | MASTER-Tavrida | (05h 16m 04.40s , +36d 05m 40.8s) | C | 60 | 16.8 | 33314 | 2020-12-31 19:59:03 | MASTER-Tavrida | (04h 51m 02.55s , +24d 07m 09.1s) | C | 60 | 16.5 | 33314 | 2020-12-31 19:59:03 | MASTER-Tavrida | (04h 57m 33.74s , +24d 04m 53.3s) | C | 60 | 16.7 | 33393 | 2020-12-31 20:00:22 | MASTER-Tavrida | (05h 03m 58.77s , +22d 09m 08.0s) | C | 60 | 15.7 | 33393 | 2020-12-31 20:00:22 | MASTER-Tavrida | (05h 10m 24.15s , +22d 06m 51.9s) | C | 60 | 15.8 | 33472 | 2020-12-31 20:01:41 | MASTER-Tavrida | (05h 21m 14.57s , +22d 08m 40.7s) | C | 60 | 14.4 | 33551 | 2020-12-31 20:03:01 | MASTER-Tavrida | (04h 49m 00.29s , +36d 08m 34.3s) | C | 60 | 15.8 | 33552 | 2020-12-31 20:03:01 | MASTER-Tavrida | (04h 56m 22.64s , +36d 06m 25.3s) | C | 60 | 15.7 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.